What are some best practices for reading and processing files in PHP?

When reading and processing files in PHP, it is important to handle errors, close files properly, and use efficient methods to read and process the file data. One best practice is to use the `fopen`, `fread`, and `fclose` functions to open, read, and close the file respectively. 

$filename = "example.txt";

$handle = fopen($filename, "r");

if ($handle) {
    while (($line = fgets($handle)) !== false) {
        // Process each line of the file here
        echo $line;
    }

    fclose($handle);
} else {
    echo "Error opening the file.";
}

Keywords

file handling fopen fread fwrite error handling

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